Brings Various New Features And Several Field Fixes

Improvements

Web Proxy Auto Discovery Enabled by Default
The web proxy auto discovery feature is now enabled by default in all base profiles on Poly CCX phones. Once you configure DHCP 252 on your network, the phone automatically determines the URI to retrieve a web proxy PAC file without additional configuration.
Call Forwarding Softkey Support
This release adds the ability to add a call Forwardsoftkey to the phone screen for users to forward incoming calls on a shared line.
Mid-transfer and mid-conference EFK States
This release adds two new states that lets users transfer or conference a call while in another.
RingCentral Feature Support
This release supports the following features for phones provisioned for the RingCentral.
Bridged Call Appearance (BCA)
Bridged call appearance (BCA) provides shared line capability on RingCentral platforms that use the following SIP mechanisms:

• Subscription to the shared-appearance package, which is an extension of the dialog package. It includes an appearance parameter.
• Line seize and release using out-of-dialog SIP INFO (a soft lock of appearance).
• INVITEin calls contain the p-line-appearance header with appearance numbers.
• Barge in and pick up remote calls using INVITE with Join/Replace.

Monitoring BLF in DND
This feature enables Busy Lamp Field (BLF) monitoring of remote devices in the following Do Not Disturb (DND) states:

• When a phone monitors a remote device using BLF, the phone subscribes to the same address for DND notifications.
• When the remote device isn't in DND, the phone shows the normal BLF state with no changes.
• When the remote device is in DND, the phone shows a new icon to indicate remote DND.
• When the remote device has a BLF state change, the phone's line reflects the change.
  For example, if the remote device goes active, it shows as remote active even if the phone is in
  DND.

DND Synchronization
This feature enables users to set Do Not Disturb (DND) on all the phones on the network at once by
setting it on a single phone.
Zoom Feature Support
This release supports the following features for phones provisioned for the Zoom Phone service.
IP Phone Call Control from Desktop Client
This feature enables a Zoom phone user to remotely control their phones from the Zoom client.
Privacy for Shared Line Group Users
Users with phones in the Zoom Phone base profile can set an active Zoom call as private. Users toggle
theLockandUnlocksoftkeys to enable or disable the privacy of the active call. This feature is enabled
by default and requires no further configuration.
Making a call private blocks other shared line group users from the following:

• Resuming the call if it is put on hold.
• Performing barge, listen, whisper, and takeover (BWLT) operations on the call.

Conference Barge for Shared Line Group Users
This feature enables conference barge on shared lines provisioned for Zoom Phone. Up to 10 shared line group users can join a call with the new Conf Barge softkey. Users press and hold theConf Barge softkey on a shared line key with a remotely active call to join the call as a full participant. This feature may be limited by Zoom Phone capabilities.
For more information, seeZoom Support - Call Monitoring.

Zoom Call Monitoring
This release enables support of the Zoom's listen, whisper, barge-in, and takeover (LWBT) call monitoring feature on Poly phones. The call monitoring feature enables users to directly monitor and intercept active
calls within the same call queues and shared line groups when they're assigned to a BLF key.
For more information, seeZoom Support - Call Monitoring.
LLDP support for Chassis & Port Subtype
Using LLDP, the phone can read the connected switch's chassis & port subtype and share the values with the Zoom PBX as part of a SIP REGISTER message using the Zoom X-Switch-Info header
For more information, seeZoom Support - Nomadic Emergency Services

Bug fixes

Application - When in a BTOE paired active audio playback call, PC Audio is displayed as Unknown.

Calling - Multiple call were dropped If the Teams app does not clear its Dialpad state after hanging up.

Peripherals - Bluetooth sets paired to CCX phones now receive incoming call state changes when in Teams and Zoom base profiles allowing calls to be answered using the call control button on the set.

Peripherals -Following a reboot, the phone answers the first call in hands-free mode even with a USB headset attached to the phone.

Provisioning -Device Provisioning fails after a DNS lookup failure with the Lens Provisioning URL when a proxy is connected

Open issues

Provisioning - Poly CCX phones configured with anunreachable provisioning server address mayenter a reboot loop if the phone crashes due to repeated attempts to upload a core file (Workaround: Use the WebConfiguration interface orthe phone menu to correct or delete theprovisioning serveraddress).

Hardware - Specific user events are not extending the phone lock feature's user expiry timer triggering the phone to lock while a user is navigating a menu (Workaround: Unlock the phone as normal and continue using the menu).

Diagnostics - The trace route diagnostic tool accessed from the Settings > Diagnostics > Network menu, does not return any results